GM Gen. 2 6T70, 6T75 and 6T80 Transmission

GM Gen. 2 6T70, 6T75 and 6T80

Critical Wear Areas & Vacuum Test Locations

GM Gen. 2 6T70, 6T75 and 6T80

TASC Force Tips

Author: Sonnax    
Subject Matter: 6T70, 6T75, 6T80

GM Gen. 2 6T70, 6T75, 6T80

TASC Force Tips

  • Author: Sonnax
  • Subject Matter: 6T70, 6T75, 6T80

GM Gen. 2 6T70, 6T75, 6T80

Critical Wear Areas & Vacuum Test Locations

NOTE: OE valves are shown in rest position and should be tested in rest position unless otherwise indicated. Test locations are pointed to with an arrow. Springs are not shown for visual clarity.

A low vacuum reading indicates wear. For specific vacuum test parameters,
refer to additional information available at www.sonnax.com.

View more vacuum test info online at www.sonnax.com/vacuum-testing

You May Also Like

GM 6T40 Pump Identification Guide

The 6T40 was introduced in 2008 for General Motors front-wheel-drive cars in the Chevrolet Malibu and has gone through several changes throughout its three generations, specifically in the pump area. The 6T40 is closely related to the more lightweight 6T30 and the heavier duty 6T45 and 6T50. Generation one started phasing out during the 2012

The 6T40 was introduced in 2008 for General Motors front-wheel-drive cars in the Chevrolet Malibu and has gone through several changes throughout its three generations, specifically in the pump area. The 6T40 is closely related to the more lightweight 6T30 and the heavier duty 6T45 and 6T50. Generation one started phasing out during the 2012 model year. The generation two pump had a slightly different pressure regulator valve, but overall the first two 6T40 generations had the same pump layout.

Seeing the Forest AND the Trees

They say that the proverbial phrase “I couldn’t see the forest for the trees” means that a person or organization cannot see the big picture because it focuses too much on the details. Related Articles – The Manifold Pipeway – 8L90 Vacuum Testing – 4L60E Harsh 1-2 Shift I have seen this phrase used after

The Manifold Pipeway

The Honda six-speed transmission has been on the bench of many specialty shops for one reason or another (figure 1). But, for those of you who have yet to lay your hands on one, mounted on the upper side of the unit is one of the largest, if not the largest solenoid and pressure switch

8L90 Vacuum Testing

Below are the diagrams for vacuum testing GM 8L90 transmissions. Note: OE valves are shown in rest position and should be tested in rest position unless otherwise indicated. Test locations are pointed to with an arrow. Springs are not shown for visual clarity. A low vacuum reading indicates wear. For specific vacuum test information, refer

4L60E Harsh 1-2 Shift

The 4L60E transmission platform has been in service from 1993-2015; that’s 22 years. It amazes me when a transmission that has been around for this long can throw a new twist on a common problem and blindside you. Let us have a look at the systems and potential problems in a 4L60E that can cause

Other Posts

GFX introduces new oil pan lines for various GM transmissions

GFX has introduced a variety of new oil pans for several different General Motors transmissions.

oilpangroup-1400
GFX adds new hard part for JF015E, REOF11A

GFX has introduced a new hard part for Nissan and General Motors transmissions.

How to fix GM 8L45/8L90 no-move and no-pressure conditions

By now you may have heard of, or even experienced, a GM 8L45 or 8L90 transmission with a no-move or no-pressure condition. Conditions of no movement or no pressure after repair have plagued this unit since its inception. Here’s what you can do about them. Related Articles – Ford harsh downshifts: 6R75 2-1, 10R60 7-6

Tasc-Force-December-Figure-1-Pressure-Regulator-Valve-Assembly-Correct-1400
Stop/start accumulators: What you don’t know can hurt you

It’s no secret that the auto industry is making big moves these days, but while a lot is new, one thing that never changes is that the men and women servicing vehicles need to be learning almost constantly in order to do their jobs safely and effectively. Everybody knows not to touch hot exhaust parts,

Figure-1---Stop-Start-Accumulators-1400